A little bit of history
Video poker first became commercially and technically viable when it became possible to combine a television-like monitor along with a solid state central processing unit. Therefore, early models of this casino game appeared exactly when first personal computers or PC were produced, i.e. mid-1970s. Even though they were primitive by today's electronics' casinos' standards, they are still common machines you will find in casinos all around the world.
Video poker is a game which was definitely established when SIRCOMA (SI Redd's COin MAchines which evolved to become later famous company IGT - International Game Technology), introduced Draw Poker in 1979. Throughout the 1980s, it became increasingly popular in casinos, as people found these video based devices less intimidating than playing table games and also more simple.
Today our favorite video game enjoys a prominent place on the gaming floors of many casinos everywhere. It is especially popular within Las Vegas locals, who tend to patronize locals casinos off Las Vegas Strip. These local casinos often offer lower denomination machines and/or better odds. Even though casinos have recently been cutting their pay tables or only offering 25 cent machines or higher since 2005, it is still thriving on and off strip.